substitution request - Alliance Construction Solutions

A. General: Provide engraving stock melamine plastic laminate, complying with FS L-P-387,
in the sizes and thicknesses indicated, engraved with engraver's standard letter style of the
sizes and wording indicated, black with white core (letter color) except as otherwise
indicated, punched for mechanical fastening except where adhesive mounting is necessary
because of substrate.
B. Thickness: 1/8”, except as otherwise indicated.
C. Fasteners: Self-tapping stainless steel screws, except contact-type permanent adhesive
where screws cannot or should not penetrate the substrate.
2.11 PLASTICIZED TAGS:
A. General: Manufacturer's standard pre-printed or partially pre-printed accident-prevention
tags, of plasticized card stock with matt finish suitable for writing, approximately 3-1/4" x
5-5/8”, with brass grommets and wire fasteners, and with appropriate pre-printed
wording including large-size primary wording (such as DANGER, CAUTION, DO NOT
OPERATE).
2.12 LETTERING AND GRAPHICS:
A. General: Coordinate names, abbreviations and other designations used in mechanical
identification work with corresponding designations shown, specified, scheduled and
approved by the Owner/Engineer. Provide numbers, lettering and wording as indicated
and approved by the Owner/Engineer for proper identification and
operation/maintenance of mechanical systems and equipment.
B. Multiple Systems: Where multiple systems of same generic name are shown and specified,
provide identification which indicates individual system number as designated on the
drawings or schedule as well as service.
PART 3 – EXECUTION
3.01 GENERAL INSTALLATION REQUIREMENTS:
A. Coordination: Where identification is to be applied to surfaces which require insulation,
painting or other covering or finish, including valve tags in finished mechanical spaces,
install identification after completion of covering and painting. Install identification prior to
installation of acoustical ceilings and similar removable concealment.
3.02 DUCTWORK IDENTIFICATION:
A. General: Identify air supply, return, exhaust, intake and relief ductwork and duct access
doors with duct markers; or provide stenciled signs and arrows, showing ductwork service
and direction of flow, in black or white (whichever provides the most contrast with
ductwork color). Identification in an existing building shall match the method which exists
in the building.
B. Location: In each space where ductwork is exposed or concealed only by a removable
ceiling system, locate signs near points where ductwork originates or continues into
Project No.: 10145
550 15 th Street Dual Brand Hotel
03/16/2012
23 0553 - 5 IDENTIFICATION FOR HVAC PIPING
AND EQUIPMENT